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聲表面波翼傘組提帶張力傳感器設(shè)計

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  本文選題:翼傘組提帶 + 聲表面波; 參考:《南京航空航天大學(xué)》2016年碩士論文


【摘要】:翼傘屬于沖壓空氣降落傘一類,可以控制飛行的速度和方向,已經(jīng)成為一種新型的飛行器。隨著軍事、國防以及民用上對翼傘投送要求的不斷提高,新型翼傘的研發(fā)越來越迫切,其中一項重要的內(nèi)容就是對翼傘傘繩張力變化的監(jiān)控與測量。針對翼傘的開傘、飛行以及著陸等工作過程,張力傳感器與接收裝置直接連線會破壞翼傘結(jié)構(gòu)的情況,本文采用聲表面波傳感器實現(xiàn)組提帶張力無線無源的測量。張力通過傳感器力學(xué)結(jié)構(gòu)轉(zhuǎn)變?yōu)閼?yīng)變,而應(yīng)變與聲表面波諧振頻率有對應(yīng)關(guān)系,通過聲表面波頻率的變化測量出組提帶張力的變化。本文以組提帶張力測試為研究對象,應(yīng)用SolidWorks設(shè)計了傳感器結(jié)構(gòu),通過ANSYS軟件對傳感器受力結(jié)構(gòu)進(jìn)行仿真,調(diào)整和優(yōu)化相應(yīng)的結(jié)構(gòu)后制造了傳感器實物,并將聲表面波諧振器粘貼于應(yīng)變最明顯區(qū)域,通過拉力試驗機(jī)展開實驗。實驗表明,諧振頻率跟隨組提帶張力的變化呈線性相關(guān)。最后,通過重復(fù)多次實驗,給出了傳感器的各項性能指標(biāo)。本文討論了傳感器保護(hù)殼的設(shè)計的問題,并著重討論了附著在保護(hù)殼上的共形偶極子天線設(shè)計問題,這種天線設(shè)計不會對組提帶等翼傘原有結(jié)構(gòu)的運動造成阻礙。利用HFSS軟件對平面偶極子天線及共形天線進(jìn)行了設(shè)計、仿真和優(yōu)化,并制作了共形天線實物。最后借助閱讀器測試了傳感器與天線整體的性能參數(shù)。實驗表明,傳感器與天線連接時能達(dá)到無線無源的功能,本文還從原理上提出了增強閱讀器接收信號的方案。最后對整個系統(tǒng)的研究工作做了總結(jié)和展望,對論文的創(chuàng)新點作了說明,對后續(xù)張力傳感器無線無源的實現(xiàn)提供參考依據(jù)。
[Abstract]:Parachute is a kind of punched air parachute which can control the speed and direction of flight and has become a new type of aircraft. With the increasing requirements of military, national defense and civilian parachute delivery, the research and development of new parachute is becoming more and more urgent. One of the important contents is to monitor and measure the tension change of parachute rope. In view of the situation that the direct connection between the tension sensor and the receiving device will destroy the structure of the parachute during the parachute opening flight and landing the surface acoustic wave sensor is used to realize the wireless passive measurement of the group lifting tension. The strain is transformed into strain through the mechanical structure of the sensor, and the strain has a corresponding relationship with the resonance frequency of saw. The change of band lifting tension is measured by the change of saw frequency. In this paper, the structure of the sensor is designed by SolidWorks, and the stress structure of the sensor is simulated by ANSYS software. After adjusting and optimizing the corresponding structure, the sensor object is manufactured. The surface acoustic wave resonator is pasted in the most obvious strain region, and the experiment is carried out by the tensile testing machine. The experimental results show that the resonance frequency is linearly correlated with the variation of the band lift tension. Finally, the performance indexes of the sensor are given by repeated experiments. In this paper, we discuss the design of sensor protection shell, and focus on the design of conformal dipole antenna attached to the protective shell. The design of this antenna will not hinder the movement of the original structure of the parachute such as lifting band. The planar dipole antenna and conformal antenna are designed, simulated and optimized by HFSS software, and the conformal antenna is made. Finally, the performance parameters of the sensor and the antenna are tested with the help of the reader. The experimental results show that the sensor can achieve the function of wireless passive when connected with the antenna. In this paper, a scheme of enhancing the signal received by the reader is proposed in principle. Finally, the research work of the whole system is summarized and prospected, the innovation of the paper is explained, and the reference is provided for the realization of wireless passive sensor.
【學(xué)位授予單位】:南京航空航天大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2016
【分類號】:V27;V243

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 向龍;秦廷輝;蔣平英;謝曉;彭錦婕;錢俊江;;聲表面波壓力傳感器的仿真與設(shè)計[J];壓電與聲光;2015年02期

2 李長林;孫中仁;;關(guān)于40CrNiMo鋼力學(xué)性能問題的討論[J];大型鑄鍛件;2013年04期

3 胡中皓;張麟兮;郭斌;;彎折線偶極子射頻識別標(biāo)簽天線設(shè)計方法研究[J];計算機(jī)仿真;2011年01期

4 張?zhí)扈?;基于HFSS的不同形狀微帶貼片天線的仿真設(shè)計[J];吉林師范大學(xué)學(xué)報(自然科學(xué)版);2008年04期

5 周雪芳;許建鳳;梁磊;;光纖光柵索力傳感器的設(shè)計與分析[J];傳感技術(shù)學(xué)報;2007年05期

6 劉文輝;李平;文玉梅;;一種無源無線SAW壓力傳感器結(jié)構(gòu)設(shè)計[J];傳感技術(shù)學(xué)報;2007年04期

7 邵紅紅;陳光;陳康敏;;表面處理對40CrNiMo鋼超聲疲勞壽命的影響[J];材料熱處理學(xué)報;2006年04期

8 賴曉錚;張小燕;賴聲禮;;彎折線偶極子天線諧振特性的研究[J];微波學(xué)報;2006年03期

9 文玉梅,周志坤,李平,楊進(jìn);聲表面波無源無線傳感器研究[J];傳感器世界;2004年04期

10 江洪,吉維峰;運用三維繪圖軟件SolidWorks改革工程圖學(xué)教學(xué)的實踐[J];工程圖學(xué)學(xué)報;2004年01期

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